Date frame

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Date frame

Tammy Ma

Hi, All,

How to make a data frame, each row of data frame store the different length of vector?

Thanks.
Tammy

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Re: Date frame

jholtman
It is called a "list".

On Wed, Mar 11, 2009 at 6:32 AM, Tammy Ma <[hidden email]> wrote:

>
> Hi, All,
>
> How to make a data frame, each row of data frame store the different length of vector?
>
> Thanks.
> Tammy
>
> _________________________________________________________________
> Show them the way! Add maps and directions to your party invites.
> http://www.microsoft.com/windows/windowslive/products/events.aspx
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> [hidden email] mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



--
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?

______________________________________________
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Re: Date frame

Tammy Ma

I have produced the data frame(1) as:
                 starting_time        Ending_time      
session_1:     14:36:10            14:40:44
session_2:     14:40:47           14:41:47
........

for each session, I produced  different sequences as:
seq_1<-c(4 ,3, 0 ,3 ,4 ,1, 0 ,1 ,4 ,3 ,4 ,3 ,4)
seq_2<-c(3,4,1,2)
seq_3<-Null
....

I want to put those to the 3rd column of data frame (1) corresponding the individual session.
How could I do so?

Originally, I want to create a data frame with each row contains different sequence and then put to 3rd column, which seems
couldn't be done.

thanks.

Tammy


> Date: Wed, 11 Mar 2009 07:50:37 -0400
> Subject: Re: [R] Date frame
> From: [hidden email]
> To: [hidden email]
> CC: [hidden email]
>
> It is called a "list".
>
> On Wed, Mar 11, 2009 at 6:32 AM, Tammy Ma <[hidden email]> wrote:
> >
> > Hi, All,
> >
> > How to make a data frame, each row of data frame store the different length of vector?
> >
> > Thanks.
> > Tammy
> >
> > _________________________________________________________________
> > Show them the way! Add maps and directions to your party invites.
> > http://www.microsoft.com/windows/windowslive/products/events.aspx
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > [hidden email] mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
>
>
>
> --
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
>
> What is the problem that you are trying to solve?

_________________________________________________________________
Show them the way! Add maps and directions to your party invites.
http://www.microsoft.com/windows/windowslive/products/events.aspx
        [[alternative HTML version deleted]]

______________________________________________
[hidden email] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
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Re: Date frame

jholtman
It all depends on what you are going to do with the data.  What you
want to do can be accomplished with 'list', but probably not
dataframes.  So what is the problem you are trying to solve?  Here is
an example of how you can create a list with the information you want:

> x <- read.table(textConnection("                 starting_time        Ending_time
+ session_1:     14:36:10            14:40:44
+ session_2:     14:40:47           14:41:47
+ session_3:     14:36:10            14:40:44
+ session_4:     14:40:47           14:41:47
+ session_5:     14:36:10            14:40:44
+ session_6:     14:40:47           14:41:47"), header=TRUE)
> closeAllConnections()
> x.l <- as.list(x)
> x.l$seq[1] <- list(c(4 ,3, 0 ,3 ,4 ,1, 0 ,1 ,4 ,3 ,4 ,3 ,4))
> x.l$seq[2] <- list(c(3,4,1,2))
> x.l$seq[3] <- NULL
> x.l$seq[4] <- list(matrix(0,4,4))
> x.l
$starting_time
[1] 14:36:10 14:40:47 14:36:10 14:40:47 14:36:10 14:40:47
Levels: 14:36:10 14:40:47

$Ending_time
[1] 14:40:44 14:41:47 14:40:44 14:41:47 14:40:44 14:41:47
Levels: 14:40:44 14:41:47

$seq
$seq[[1]]
 [1] 4 3 0 3 4 1 0 1 4 3 4 3 4

$seq[[2]]
[1] 3 4 1 2

$seq[[3]]
NULL

$seq[[4]]
     [,1] [,2] [,3] [,4]
[1,]    0    0    0    0
[2,]    0    0    0    0
[3,]    0    0    0    0
[4,]    0    0    0    0


On Wed, Mar 11, 2009 at 8:49 AM, Tammy Ma <[hidden email]> wrote:

> I have produced the data frame(1) as:
>                  starting_time        Ending_time
> session_1:     14:36:10            14:40:44
> session_2:     14:40:47           14:41:47
> ........
>
> for each session, I produced  different sequences as:
> seq_1<-c(4 ,3, 0 ,3 ,4 ,1, 0 ,1 ,4 ,3 ,4 ,3 ,4)
> seq_2<-c(3,4,1,2)
> seq_3<-Null
> ....
>
> I want to put those to the 3rd column of data frame (1) corresponding the
> individual session.
> How could I do so?
>
> Originally, I want to create a data frame with each row contains different
> sequence and then put to 3rd column, which seems
> couldn't be done.
>
> thanks.
>
> Tammy
>
>
>> Date: Wed, 11 Mar 2009 07:50:37 -0400
>> Subject: Re: [R] Date frame
>> From: [hidden email]
>> To: [hidden email]
>> CC: [hidden email]
>>
>> It is called a "list".
>>
>> On Wed, Mar 11, 2009 at 6:32 AM, Tammy Ma <[hidden email]> wrote:
>> >
>> > Hi, All,
>> >
>> > How to make a data frame, each row of data frame store the different
>> > length of vector?
>> >
>> > Thanks.
>> > Tammy
>> >
>> > _________________________________________________________________
>> > Show them the way! Add maps and directions to your party invites.
>> > http://www.microsoft.com/windows/windowslive/products/events.aspx
>> >        [[alternative HTML version deleted]]
>> >
>> > ______________________________________________
>> > [hidden email] mailing list
>> > https://stat.ethz.ch/mailman/listinfo/r-help
>> > PLEASE do read the posting guide
>> > http://www.R-project.org/posting-guide.html
>> > and provide commented, minimal, self-contained, reproducible code.
>> >
>>
>>
>>
>> --
>> Jim Holtman
>> Cincinnati, OH
>> +1 513 646 9390
>>
>> What is the problem that you are trying to solve?
>
> ________________________________
> See all the ways you can stay connected to friends and family



--
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?

______________________________________________
[hidden email] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.